xzj7019 opened a new pull request, #39999:
URL: https://github.com/apache/doris/pull/39999
In following plan pattern, fragment 11 has 3 child fragments aligning with 3
exchange nodes and the union plan node only have 2 plan children, i.e, the aggr
node and the exchange node(4). In current union node's parallelism computing,
it used the plan children's size to do iteration to find the max parallel but
ignore the last fragment's. Actually, it should use fragment's children instead
of plan node's children to do the iteration.
11:VUNION(703)
|
|----10:VAGGREGATE (update finalize)(697)
| | group by: brand_name[#23], skc[#24]
| | sortByGroupKey:false
| | cardinality=1
| | final projections: '1', brand_name[#25], skc[#26]
| | final project output tuple id: 11
| | distribute expr lists: skc[#24]
| |
| 9:VHASH JOIN(691)
| | join op: INNER JOIN(PARTITIONED)[]
| | equal join conjunct: (skc[#19] = skc_code[#12])
| | cardinality=1
| | vec output tuple id: 9
| | output tuple id: 9
| | vIntermediate tuple ids: 8
| | hash output slot ids: 18 19
| | final projections: brand_name[#20], skc[#21]
| | final project output tuple id: 9
| | distribute expr lists: skc[#19]
| | distribute expr lists: skc_code[#12]
| |
| |----6:VEXCHANGE
| | offset: 0
| | distribute expr lists: skc_code[#12]
| |
| 8:VEXCHANGE
| offset: 0
| distribute expr lists:
|
4:VEXCHANGE
offset: 0
distribute expr lists:
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